Things You'll Need
Instructions
Rinse the coins in warm water to remove any loose dirt or debris.
Separate the coins by metal. Soaking different types of metals together won't be as effective.
Set the coins in bowls or small containers and pour enough acetone on them to completely submerge them.
Allow the coins to soak for 30 minutes.
Remove the coins from the acetone and wash them with warm soapy water and an old toothbrush.
Dry the coins with a soft towel.